RA/DEC (2000)
19:55:15.987 -12:13:04.06
298.8166113 -12.217795
Type
SN Ia
Redshift
0.066
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2026-05-20 09:36:17.997
TNS AT
Y
Public
Y
Host Name
WISEA J195515.90-121302.7
Discovery Mag
19.764
Filter
g-ZTF
Reporter/s
A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, S. Jurado, A. Mourao, A. Alvarez, F. Andrades, A. Bayo, G. Cabrera-Vives, M. Catelan, P.A. Estevez, S. Eyheramendy, B. Galindo, L. Hernandez-Garcia, H. Larranaga, K. Medina, D. Moreno-Cartagena, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026nfu - 2026-05-25 11:07:50 P200 / NGPS (ZTF)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
▌Show C II at z=vexp= km/s
▌Show C III at z=vexp= km/s
▌Show C IV at z=vexp= km/s
▌Show N II at z=vexp= km/s
▌Show N III at z=vexp= km/s
▌Show N IV at z=vexp= km/s
▌Show N V at z=vexp= km/s
▌Show O at z=vexp= km/s
▌Show [O I] at z=vexp= km/s
▌Show O II at z=vexp= km/s
▌Show [O II] at z=vexp= km/s
▌Show [O III] at z=vexp= km/s
▌Show O V at z=vexp= km/s
▌Show O VI at z=vexp= km/s
▌Show Na at z=vexp= km/s
▌Show Mg at z=vexp= km/s
▌Show Mg II at z=vexp= km/s
▌Show Si II at z=vexp= km/s
▌Show S II at z=vexp= km/s
▌Show Ca II at z=vexp= km/s
▌Show [Ca II] at z=vexp= km/s
▌Show Fe II at z=vexp= km/s
▌Show Fe III at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Tellurics 
▌Show Galaxy lines at z=
▌Show WR-WN at z=vexp= km/s
▌Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌GOTO-S_GOTO-3_L
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌P48_ZTF-Cam_g
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
 ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
23820 2026-05-25 11:07:50 P200 / NGPS Kaustav Kashyap Das Kaustav Kashyap Das ZTF tns_2026nfu_2026-05-25_11-07-50_P200_NGPS_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-05-22 03:42:59 - 2026-05-22 03:42:59 2461182.65485 - 2461182.65485 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
585012 2026-05-22 03:42:59 2461182.65485 20.11 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-S_GOTO-3 2026-04-28 18:00:42 - 2026-04-28 18:00:42 2461159.250489 - 2461159.250489 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587859 2026-04-28 18:00:42 2461159.250489 20.1 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
L-GOTO GOTO-N_GOTO-2 2026-05-29 03:03:46 - 2026-05-29 03:03:46 2461189.627611 - 2461189.627611 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587860 2026-05-29 03:03:46 2461189.627611 18.53 0.1 ABMag L-GOTO GOTO-N_GOTO-2 270
cyan-ATLAS ATLAS-CHL_ATLAS-04 2026-05-23 08:44:42 - 2026-05-23 08:44:42 2461183.86437 - 2461183.86437 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
585013 2026-05-23 08:44:42 2461183.86437 19.132 0.175 19.23 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
g-ZTF P48_ZTF-Cam 2026-05-16 10:57:36 - 2026-05-20 09:36:18 2461176.9566667 - 2461180.9002083 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584224 2026-05-20 09:36:18 2461180.9002083 19.764 0.169828 20.1882 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
584223 2026-05-16 10:57:36 2461176.9566667 19.9767 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
306527 2026-05-29 08:14:04 GOTO_bot D. O'Neill, M. Pursiainen, K. Ackley et al. GOTO GOTO 19:55:16.019 -12:13:04.34 2026-05-29 03:03:45.504 18.53 L-GOTO PSN GOTO26fey GOTO N
305082 2026-05-24 08:59:55 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 19:55:15.979 -12:13:03.90 2026-05-23 08:44:41.568 19.132 cyan-ATLAS PSN ATLAS26ghv ATLAS N
304712 2026-05-20 18:07:34 ALeRCE A. Munoz-Arancibia, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 19:55:15.987 -12:13:04.06 2026-05-20 09:36:17.997 19.764 g-ZTF PSN WISEA J195515.90-121302.7 ZTF26aaxninc ZTF Early SN candidate (g-rise > 0.13+-0.03 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26aaxninc 2026TNSTR2186....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23816 2026-05-26 03:19:19 ZTF_Bot1 K. Das, K. Hinds, C. Fremling, J. Castaneda Jaimes, T. du Laz, T. Culino, M. Kasliwal (Caltech), and M. Coughlin (UoM) on behalf of the ZTF LIONS collaboration ZTF SN Ia 0.066 1 ZTF 2026TNSCR2300....1D
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
23820 2026-05-25 11:07:50 P200 / NGPS Kaustav Kashyap Das Kaustav Kashyap Das ZTF tns_2026nfu_2026-05-25_11-07-50_P200_NGPS_ZTF.ascii Object

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